<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="UTF-8">
        <title>文本格式化</title>
    </head>
    <body>
        <strong>加粗效果</strong>
        <br />
        <b>加粗效果</b>
        <br />
        <em>斜体文字</em>
        <br />
        <del>删除线</del>
        <br />
        <u>下划线</u>
    </body>
</html>